— Have a picnic this Saturday, OK?
— ________. I'm going to visit my parents in the countryside.
A:I can't agree more
B:I'm afraid not
C:I don't think so
D:Sounds great
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在△ABC与△A’B’C’中,有下列条件:①ABA'B'=BCB'C';⑵ACA'C'=BCB'C'③∠A=∠A';④∠C=∠C'如果从中任取两个条件组成一组,那么能判断△ABC∽△A’B’C’的共有( )组。